Cowl



Aug. 30,1927. 1,641,060

H. C. WEHRFRITZ COWL Filed June 15, 1926 2 sheets-Sheet 1 WITNESSES IINVEPITQR Law/@111 JiTCWVFuyYLZ Q I BY ATTORNEYS Patented Au .30, 1927.

a Li.

HENRY C. WEHRFRITZ, 0F JERSEY CITY, NEW JERSEY.

GOWL.

- Application'filed June 15,

This invention relates to cowls, an object of the invention being toprovide a cowl, in which an outlet tube is provided with an opening. inits rear face which opening is always maintained at the rear by theaction of the wind through the cowl. i A further object is to provide acowl of improved construction that has an improved mounting whichinsures easy movement of the cowl with the wind. V

A further object is to provide an improved cowl which can bemanufactured and sold at a reasonably low price and which will mostefiiciently perform'the functions for which it [is intended. p

With these .and other objects in view, the invention consists in certainnovel features of construction and combinations and arrangements ofparts, which will be more fully hereinafter in the claim.

In the accompanying drawings Figure 1 is a perspective view, showing myimproved cowl in operative position on a pipe; I

Figure 2 isa view in horizontal transverse section on the line 2-2 ofFigure 1;

Figure 3 is a view in rear elevation oftlie cowl;

Figure .t is a view, in vertical longitudinal section, of the cowl.

1 represents a supporting pipe which is provided with spiders or bars 2and 3, respectively, in which a vertical rod 4 is secured andconstitutes the support of my improved cowl 5. The cowl 5 is in realitya casing, which maybe of any suitable mate- I rial but is preferably ofmetal and is formed with a closed'top 6 and is front and rear ends.

The cowl is so shaped'that the front end is preferably larger than therear end, as clearly indicated in Figure 2, and while I have illustrateda cowl of general angular form it is obvious that it may be otherwiseshaped, the essential, however, being that the front end is larger thanthe rear end so asto induce a passage of air through the cowl, causingasuction up the pipe 1, as is readily understood.

This cowl 5 has .a central tube 7, preferably of slightly largerdiameter than the described and pointed out less of the direction inwhich open both atthe v 192 Serial no. 116,195.

pipe 1, and the bottom of the cowl is open at the lower end of the tube7 so as to permit the tube 7 to enclose the upper end of r turningmovement of the cowl on the rod.

A vane 11 is fixed on top of the cowl so that this vane insures theproper positioning 'of the cowl in accordance with the direction of thewind.

The tube 7 in its rear face is formed with j an opening 12, whichopening may be of any desired size but extends around the cowl adistance no greater than one-half of the circumference of the cowl. Thisopening is positioned at the rear of the tube 7 so that the front wallof said tube acts as a deflector to cause the air to pass around thetube at both sides thereof and induces a suction through the tube 7' andopening 12 regardthe wind is blowing.

ltwill thus benoted that by reason of the construction above describedthe vane 11 will insure the cowl being turned to a direction to receivethe wind in the larger end of the cowl, and as the wind blows throughthe cowl around the tube 7, it will induce a suction up the pipe 1and'tube 7 and through pipe '1, and the mounting insures a free turningmovement so that the cowl is sensitive to even the slightest breeze.

Various slight changes and alterations might be made in the general formof the parts described without departing from my invention andlience Ido not limit myself to the precise details set forth but consider myselfat liberty to niake'sucli slight changes and alterations as fairly fallwithin the spirit and scope of the appended claim.

I claim:

A cowl. lmml jwising :1 casing open at both ends and larger at one andthan at the other, :1 vurlicnl t'uhv snmllm' in rliannulcr than theCasing and, fixedly secured in the casing, will lube having an openingin its Wall adjacent the smaller end of the casing, bear- :ings locatedcentrally in the tube above and below the said o 'lening, a thrustlmu'ing in the top of the (*nsing', :1 pipe rwviving the lube thereon,and :1 vmlticu] rod secured in the pipe and mounted in all three of saidhearings.

HENRY C. \VEI-IRFRITZ.

